condition	mean	min	max
4 h after light	3.733385	3.04793	4.41884
8 h after light	8.823895	8.67664	8.97115
12 h after light	13.4219	11.1199	15.7239
4 h after dark	25.66465	25.0751	26.2542
8 h after dark	31.157049999999998	30.8382	31.4759
12 h after dark	18.2611	16.568	19.9542